March 2020
Beginner
592 pages
14h 14m
English
Content preview from Learn Docker - Fundamentals of Docker 19.x - Second Edition
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Demystifying declarative versus imperative
Docker Compose is a tool provided by Docker that is mainly used where you need to run and orchestrate containers running on a single Docker host. This includes, but is not limited to, development, continuous integration (CI), automated testing, manual QA, or demos.
Docker Compose uses files formatted in YAML as input. By default, Docker Compose expects these files to be called docker-compose.yml, but other names are possible. The content of a docker-compose.yml is said to be a declarative way of describing and running a containerized application potentially consisting of more than a single container.
So, what is the meaning of declarative?
First of all, declarative is the antonym of imperative. Well, ...
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